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Reinforcing treatment method for newly-built highway engineering soft foundation

A technology for weak foundations and treatment methods, applied in infrastructure engineering, roads, roads, etc., can solve problems such as unsatisfactory reinforcement effect, unsatisfactory pile hole depth, spacing and concrete thickness, and pre-planning of dosage, so as to ensure accuracy, The effect of improving construction efficiency

Inactive Publication Date: 2020-08-07
SHANDONG JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the disadvantages in the prior art that the pile hole depth, spacing, concrete thickness, and amount cannot be pre-planned when strengthening the weak foundation, resulting in unsatisfactory reinforcement effects. Reinforcement method for weak foundation of highway engineering

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A treatment method for strengthening weak foundations of new highway engineering, comprising the following steps:

[0028] S1: Carry out on-the-spot inspection of the reinforced road section, use soil-borrowing equipment to take soil from the foundation, the depth of the soil is 1m, test the properties of the soil at different depths, measure the length and width of the reinforced road section, and record the data;

[0029] S2: Modeling based on measurement and investigation data, determine the depth and spacing of the pile holes, and at the same time determine the thickness of the concrete to be laid. The depth of the pile holes is 1m, the spacing is 30cm, and the concrete thickness is 10cm;

[0030] S3: Divide the foundation into areas, construct multiple areas at the same time, use multiple tamping machines to work at the same time, tamp the foundation surface, determine the amount of concrete in each area according to the thickness of the concrete, and then according...

Embodiment 2

[0034] A treatment method for strengthening weak foundations of new highway engineering, comprising the following steps:

[0035] S1: Carry out on-the-spot inspection of the reinforced road section, use soil-borrowing equipment to take soil from the foundation, the depth of the soil is 1.1m, test the properties of the soil at different depths, measure the length and width of the reinforced road section, and record the data;

[0036] S2: Modeling based on measurement and investigation data, determine the depth and spacing of the pile holes, and determine the thickness of the concrete to be laid at the same time, the depth of the pile holes is 1.1m, the spacing is 40cm, and the concrete thickness is 11cm;

[0037] S3: Divide the foundation into areas, construct multiple areas at the same time, use multiple tamping machines to work at the same time, tamp the foundation surface, determine the amount of concrete in each area according to the thickness of the concrete, and then accor...

Embodiment 3

[0041] A treatment method for weak ground reinforcement of new highway engineering, comprising the following steps:

[0042] S1: Carry out on-the-spot inspection of the reinforced road section, use soil-borrowing equipment to take soil from the foundation, the depth of the soil is 1.2m, test the properties of the soil at different depths, measure the length and width of the reinforced road section, and record the data;

[0043] S2: Modeling based on measurement and investigation data, determine the depth and spacing of the pile holes, and determine the thickness of the concrete to be laid at the same time. The depth of the pile holes is 1.15m, the spacing is 50cm, and the concrete thickness is 12cm;

[0044] S3: Divide the foundation into areas, construct multiple areas at the same time, use multiple tamping machines to work at the same time, tamp the foundation surface, determine the amount of concrete in each area according to the thickness of the concrete, and then according...

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Abstract

The invention belongs to the field of foundation reinforcement, in particular to a reinforcing treatment method for a newly-built highway engineering soft foundation. Aiming at the problem of non-ideal reinforcing effect caused by incapability of pre-planning pile hole depth, spacing, concrete thickness and use amount when the soft foundation is reinforced in the prior art, the invention providesthe following scheme that the method comprises the following steps of S1, performing field investigation on a reinforced road section, measuring the length and the width of the reinforced road section, and recording data; S2, carrying out modeling according to measurement and investigation data, determining the depth and interval of pile holes, and meanwhile determining the thickness of laid concrete; S3, tamping the foundation, and punching according to the pile hole depth and spacing determined in S2 to obtain a pile hole; and S4, injecting a soil adhesive into the pile hole. The method candetermine the pile hole depth, spacing and concrete thickness, provide a basis for subsequent construction, ensure the construction accuracy, and improve the construction efficiency.

Description

technical field [0001] The invention relates to the technical field of foundation reinforcement, in particular to a method for reinforcing weak foundations of newly-built highway projects. Background technique [0002] Weak foundation refers to the foundation mainly composed of silt, silty soil, flush filling soil, miscellaneous filling soil or other highly compressive soil layers. The natural water content of this kind of foundation is too large, the bearing capacity is low, and it is easy to cause sliding or consolidation settlement under the action of load, so it is necessary to strengthen the weak foundation. [0003] In the prior art, when the weak foundation is reinforced, the pile hole depth, spacing, concrete thickness, and amount cannot be pre-planned, resulting in unsatisfactory reinforcement effects. Therefore, we propose a method for strengthening the weak foundation of new highway projects. used to solve the above problems. Contents of the invention [0004]...

Claims

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Application Information

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IPC IPC(8): E01C3/00E01C3/04E02D3/046E02D3/08E02D1/04E02D3/12
CPCE01C3/00E01C3/04E02D1/04E02D3/046E02D3/08E02D3/12
Inventor 尹文军
Owner SHANDONG JIAOTONG UNIV
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